The Third Eye

…In recent years, scientists gradually discovered that the mammalian pineal gland is photo sensitive. However, the mammalian pineal, unlike that of other vertebrates, is not thought to be directly light sensitive. Melatonin, the principal product of the mammalian pineal gland, acts as an internal representative of nighttime. The secretion of melatonin is increased under light-dark cycles, with an increase in the dark period and a decrease in the light period…

http://beforeitsnews.com/science-and-technology/2013/05/yes-the-pineal-gland-a-replica-of-an-eye-with-retina-the-third-eye-so-long-in-the-realms-of-philosolpy-yields-to-science-meant-to-blow-your-away-2597456.html

 Ancients In Egypt and elsewhere gave much greater signifigcance to the pineal gland than does modern “science.”